[Full-disclosure] [ GLSA 200611-16 ] Texinfo: Buffer overflow

[Sune Kloppenborg Jeppesen]

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Gentoo Linux Security Advisory                           GLSA 200611-16
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                                            http://security.gentoo.org/
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  Severity: Normal
     Title: Texinfo: Buffer overflow
      Date: November 21, 2006
      Bugs: #154316
        ID: 200611-16

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Synopsis
========

Texinfo is vulnerable to a buffer overflow that could lead to the
execution of arbitrary code.

Background
==========

Texinfo is the official documentation system of the GNU project.

Affected packages
=================

    -------------------------------------------------------------------
     Package           /  Vulnerable  /                     Unaffected
    -------------------------------------------------------------------
  1  sys-apps/texinfo      < 4.8-r5                          >= 4.8-r5

Description
===========

Miloslav Trmac from Red Hat discovered a buffer overflow in the
"readline()" function of texindex.c. The "readline()" function is
called by the texi2dvi and texindex commands.

Impact
======

By enticing a user to open a specially crafted Texinfo file, an
attacker could execute arbitrary code with the rights of the user
running Texinfo.

Workaround
==========

There is no known workaround at this time.

Resolution
==========

All Texinfo users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=sys-apps/texinfo-4.8-r5"

References
==========

  [ 1 ] CVE-2006-4810
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4810

Availability
============

This GLSA and any updates to it are available for viewing at
the Gentoo Security Website:

  http://security.gentoo.org/glsa/glsa-200611-16.xml

Concerns?
=========

Security is a primary focus of Gentoo Linux and ensuring the
confidentiality and security of our users machines is of utmost
importance to us. Any security concerns should be addressed to
security at gentoo.org or alternatively, you may file a bug at
http://bugs.gentoo.org.

License
=======

Copyright 2006 Gentoo Foundation, Inc; referenced text
belongs to its owner(s).

The contents of this document are licensed under the
Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5
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